Improved Oxidation and Hot Corrosion Resistance of 1Cr11Ni2W2MoV Stainless Steel at 650 °C by a Novel Glass-Ceramic Coating

被引:6
|
作者
Chen, Ken [1 ]
Lin, Jiewei [1 ]
Li, Wenfang [1 ]
Zhu, Wen [1 ]
Li, Kang [1 ]
Yi, Aihua [1 ]
Hu, Shaodong [1 ]
Chen, Minghui [2 ]
Wang, Fuhui [2 ]
机构
[1] Dongguan Univ Technol, Sch Mat Sci & Engn, 1 Daxue Rd, Dongguan 523808, Peoples R China
[2] Northeastern Univ, Shenyang Natl Lab Mat Sci, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
基金
中国国家自然科学基金;
关键词
glass-ceramics coating; martensitic stainless steel; hot corrosion; oxidation; INITIAL OXIDATION; SELF-DIFFUSION; BEHAVIOR; NACL; CRYSTALLIZATION; SUPERALLOY; KINETICS; ALLOY;
D O I
10.3390/cryst11101213
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
A novel glass-ceramic coating was applied onto the 1Cr11Ni2W2MoV stainless steel. The oxidation and corrosion behaviors of coated and uncoated steels were comparatively investigated in air and in the presence of NaCl + Na2SO4 eutectic deposits at 650 & DEG;C, respectively. Protective scales formed on the surface of stainless steel prevented the severe oxidation of the alloy. Catastrophic hot corrosion occurred on the steel when a salt film was attached, producing loose iron oxide layers and internal corrosion zone. The glass-ceramic coating acted as a barrier that effectively hindered the invasion of corrosive species during the oxidation and hot corrosion tests.
引用
收藏
页数:15
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